ALBUFEIRA
Um espelho que reflecte a vida, que passa por nós num segundo (espelho)
Near Earth Asteroids
Potentially Hazardous Asteroids are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On March 4, 2011 there were 1203 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid | Date(UT) | Miss Distance | Mag. | Size |
2011 EB | Feb 26 | 2.4 LD | -- | 18 m |
2011 DQ | Feb 26 | 9.7 LD | -- | 26 m |
2011 DT9 | Feb 27 | 9 LD | -- | 39 m |
2011 DE5 | Mar 1 | 4.9 LD | -- | 22 m |
2011 DW4 | Mar 3 | 6.9 LD | -- | 15 m |
2011 EC | Mar 6 | 9.2 LD | -- | 33 m |
2000 PN9 | Mar 10 | 45.5 LD | -- | 2.6 km |
2002 DB4 | Apr 15 | 62.5 LD | -- | 2.2 km |
2008 UC202 | Apr 27 | 8.9 LD | -- | 10 m |
2009 UK20 | May 2 | 8.6 LD | -- | 23 m |
2008 FU6 | May 5 | 75.5 LD | -- | 1.2 km |
2003 YT1 | May 5 | 65.3 LD | -- | 2.5 km |
2002 JC | Jun 1 | 57.5 LD | -- | 1.6 km |
2009 BD | Jun 2 | 0.9 LD | -- | 9 m |
2002 JB9 | Jun 11 | 71.5 LD | -- | 3.2 km |
2001 VH75 | Jun 12 | 42.2 LD | -- | 1.1 km |
2004 LO2 | Jun 15 | 9.9 LD | -- | 48 m |
Notes:
LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
SpaceWeather.com
